Prevent infinite loops in model selection logic by configuring an initial model state

src/interface/web/app/components/chatSidebar/chatSidebar.tsx

@@ -266,6 +266,7 @@ function ChatSidebarInternal({ ...props }: ChatSideBarProps) {
                                 <ModelSelector
                                     disabled={!isEditable || !authenticatedData?.is_active}
                                     onSelect={(model, userModification) => handleModelSelect(model.name, userModification)}
+                                    initialModel={agentData?.chat_model}
                                     selectedModel={selectedModel}
                                 />
                             </SidebarMenuItem>